Relationship between physical activity and resting secretory immunity in children

dc.contributor.author

Cieslak, Thomas J.

en_US

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2009-05-21T13:46:06Z

dc.date.available

2009-05-21T13:46:06Z

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2002-05-21T13:46:06Z

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http://hdl.handle.net/10464/1334

dc.description.abstract

This study examined relationships among physical activity, body fat and salivary
immonoglobulin A (sIgA) levels in adolescent children of Southern Ontario. Gender
differences on these factors were also assessed. Sixty-one grade-five students (10-1 lyrs),
males (n=29) and females (n=31), who had not received a flu vaccination in the past 12
months, participated in the study. They were assessed for: aerobic power (20-m shuttle
run), relative body fat (bioelectrical impedance analysis), sIgA, sIgA/albumin ratio, and
salivary Cortisol. Each subject completed the Habitual Activity Estimation Scale and the
Participation Questioimaire. Students wore a pedometer for 48h to estimate their average
total distance traveled per day. The results show 40% of the children were over 25% body
fat and 50% of them spend less than five hours per day in any physical activities. Salivary
IgA was not related to salivary Cortisol, physical activity, fitness level or body fat in this
age group. There were no gender differences in sIgA and Cortisol levels. Boys had a
significantly higher aerobic power and daily distance traveled, but reported similar
organized and fi-ee time activity participation levels as the girls. The test-retest
reproducibility for salivary Cortisol was 0.663 (p<0.01), while long term sIgA and
sIgA/albumin ratio reproducibility was non-significant for repeated measurements taken
after six weeks. It was found that salivary IgA has not been shovm to be a stable measure
in children, in contrast to the results found in the literatiu-e that tested adults and the
relationship with physical activity, fitness level and body fat.

en_US

dc.language.iso

eng

en_US

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Brock University

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dc.subject

Exercise

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Exercise

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Salivary glands

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Fat.

en_US

dc.title

Relationship between physical activity and resting secretory immunity in children